SLVU151A April 2013 – August 2021 TPS54350 , TPS54550
The EVM is designed to operate from a nominal 12 V or 15 V with a working operating range of 6-V to 17-V input voltage. The TPS54550 is specified to operate over an input voltage range of 4.5 V to 20 V. The upper voltage limit of 17 V is due to minimum on time restrictions to guarantee 3.3-V output.